Yes, excessive alcohol use can cause or worsen a variety of physical, mental, and social problems. Alcohol is the most widely accepted psychoactive substance humans use to alter their consciousness, and it is the most dangerous. Alcohol is a wolf in sheep’s clothing that has snuck into the lives of many Americans under the guise of social acceptability. The impact of extreme alcohol use, referred to as “alcoholism” or “addiction” by the surgeon general; can be felt by the individual struggling as well as their family, friends, colleagues, and the community. Mental disorders can arise within the person using, as well as those impacted by their use.

“Health is a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity.” – The World Health Organization constitution

A person does not need to meet the criteria for a mental disorder diagnosis in order to experience impairment, pain, or suffering. Some may experience sub-clinical symptoms or traits of substance use, mood, personality, and/or psychotic disorders. Even though they do not meet the criteria for a clinical diagnosis they may experience impairment in their physical, mental, and/or social well-being.

Mental Health & Wellbeing

“Severe problematic use also contributes to disinhibition and feelings of sadness and irritability, which contribute to suicide attempts and completed suicide.” (DSM5, 2013, p.496)

The Diagnostic and Statistical Manual of Mental Disorders Fifth Edition (DSM-5) is what is currently used in the United States to diagnose mental disorders. This manual is a collection of diagnoses and the criteria that need to be met to make a clinical diagnosis.

According to the Surgeon General’s Report on Alcohol, Drugs and Health (U.S. Department of Health and Human Services, 2016), the following are individual risk factors

Current mental disorders
Low involvement in school
A history of abuse and neglect
History of substance use during adolescence

Criteria for being diagnosed with an alcohol use disorder requires significant impairment or distress manifested by at least two of eleven different symptoms. These symptoms include frequently drinking more than was originally intended, failure to fulfill major role obligations, intense cravings for alcohol, and continued use despite problems arising from excessive use.

Mental Disorders associated with an increased rate of alcohol use:

Bipolar Disorders
Schizophrenia
Antisocial Personality Disorder
Anxiety Disorders
Depressive Disorders

Alcohol can be used as a salve for old wounds. In more clinical terms; some people deal with the symptoms of untreated mental health disorders by drinking alcohol. Initially, alcohol use in the interest of coping with suffering may bring more benefits than consequences, which reinforces this behavior. With increased use over time, some people begin to experience more problems than benefits. For example, someone who struggles with symptoms of social anxiety may use alcohol to calm themselves when at parties or other social events.

Repeatedly consuming high doses of alcohol can make existing mental disorders worse. Returning to the previous example of social anxiety, a person who is desperate for connection yet terrified of taking social risks may withdraw from their community. Withdrawal and social isolation can bring up feelings of loneliness. Loneliness is painful, and alcohol is a seductive companion.

Once conditioned to respond to suffering with alcohol use, it is difficult to start integrating more effective methods of coping with stress.

Physical Health & Wellbeing

It is important to consider the plethora of medical problems that can also arise from the excessive consumption of alcohol. When coping with chronic health problems various mental disorders can arise from the stress from these health problems.

According to the Center for Disease Control (CDC), excessive alcohol use can lead to:

High blood pressure
Heart disease
Stroke
Liver disease
Cancer of the breast, mouth, throat, esophagus, liver, and colon

Not only is our physical health at risk when we use alcohol in excess; the safety of our community is compromised.

“It is estimated that one in five intensive care unit admissions in some urban hospitals is related to alcohol and that 40% of individuals in the United States experience an alcohol-related adverse event at some time in their lives, with alcohol accounting for 55% of fatal driving events.” (DSM5, 2013, p.496)

“Alcohol intoxication contributes to the more than 30,000 alcohol-related drinking deaths in the United States each year.” (DSM5, 2013, pg 499)

When those who use alcohol cause a fatal car accident while under the influence of psychoactive substances they often feel a heavy weight of guilt and shame that can complicate their responsiveness to treatment efforts. Sometimes they feel they don’t even deserve recovery.

Social Health & Wellbeing

According to the Surgeon General’s Report on Alcohol, Drugs and Health (U.S. Department of Health and Human Services, 2016) community level risk factors for problems related to substance use are:

Low parental monitoring
A family history of substance use or mental disorders
High levels of family conflict or violence

The American young adult’s rite of passage into “adulting” is marked by binge drinking in a dive bar on their 21st birthday. In the United States, problematic alcohol use is most common among 18 to 29-year-old men. This may reflect a lack of well-being among young American men that demands that we reflect as a society on how we socialize young men and prepare them for adulthood.

Our treatment programs address the complex interplay between alcohol addiction and mental health disorders, providing comprehensive care for individuals struggling with both. Excessive alcohol use not only damages physical health but also exacerbates or even triggers mental health conditions, creating a cycle that can be challenging to break. Through dual diagnosis treatment, we help individuals uncover the root causes of their addiction and mental health issues, addressing both with evidence-based therapies tailored to each person’s needs. Recovery is possible, and we are here to support every step of that journey. If you or a loved one is grappling with alcohol addiction or a dual diagnosis, we encourage you to reach out—our dedicated team is ready to help you reclaim a healthier, more fulfilling life.

Frequently Asked Questions

Can alcohol use cause mental illness?

Yes — heavy or prolonged alcohol use can both trigger new mental health conditions and significantly worsen ones that already exist. Alcohol is a central nervous system depressant that disrupts the brain’s neurotransmitter balance over time, which can produce or deepen symptoms of depression, anxiety, psychosis, and other disorders. The relationship runs in both directions: mental illness increases the likelihood of turning to alcohol to cope, and alcohol use in turn damages the very neurological systems that regulate mood, stress, and emotional stability. This cycle — sometimes called a dual diagnosis or co-occurring disorder — is one of the most common and clinically complex presentations in addiction treatment.

What mental disorders are most commonly linked to heavy alcohol use?

The mental disorders most commonly linked to heavy alcohol use are depression, anxiety disorders, bipolar disorder, PTSD, antisocial personality disorder, and schizophrenia. Depression is the most frequent co-occurring condition — people with alcohol dependence are substantially more likely to experience major depressive episodes than those who don’t drink heavily. Anxiety disorders, including social phobia, panic disorder, generalized anxiety, and OCD, are also highly prevalent in people with Alcohol Use Disorder. Bipolar disorder has one of the strongest associations with alcohol misuse of any psychiatric diagnosis, as the mood dysregulation of bipolar can drive drinking during both manic and depressive phases.

Does alcohol cause depression or does depression cause drinking?

Both are true, and for many people they operate simultaneously in a self-reinforcing cycle. Some people begin drinking heavily to self-medicate preexisting depression — alcohol offers temporary relief from low mood, emotional pain, and hopelessness, which reinforces the behavior before the consequences accumulate. At the same time, heavy alcohol use is itself a well-documented cause of depressive symptoms, because alcohol depletes serotonin and dopamine over time and disrupts the brain’s ability to regulate mood. A useful clinical test is whether depressive symptoms lift after a sustained period of sobriety: if they do, the depression was largely alcohol-induced; if they persist, a primary depressive disorder likely existed before or alongside the drinking and needs its own direct treatment.

What is a dual diagnosis and how is it treated?

A dual diagnosis — also called a co-occurring disorder — refers to the simultaneous presence of a substance use disorder and one or more mental health conditions, such as AUD alongside depression, PTSD, or bipolar disorder. It is far more common than many people realize: research indicates that roughly half of people with a serious mental health disorder also struggle with a substance use disorder. The most important principle in treating dual diagnosis is that both conditions need to be addressed together and at the same time — treating only the addiction while leaving the mental health disorder unaddressed, or vice versa, dramatically increases the likelihood of relapse. Evidence-based dual diagnosis treatment typically integrates medical stabilization, individual therapy, psychiatric care, and group support within a single coordinated program.

Q8: Can quitting alcohol improve mental health?

Yes — for many people, sustained sobriety produces significant and lasting improvements in mental health, sometimes more quickly than they expect. Research consistently shows that depressive and anxiety symptoms often diminish substantially within the first several weeks of stopping heavy drinking, as the brain’s neurotransmitter systems begin to recalibrate. Sleep improves, emotional regulation stabilizes, and the cognitive fog that heavy drinking produces begins to lift. It is worth noting that the early weeks of withdrawal can temporarily intensify anxiety, irritability, and low mood before improvement follows — which is one of the reasons that medically supported detox and professional treatment are so valuable. For those with a primary mental health condition that exists independently of alcohol, sobriety makes those conditions far more treatable as well.

Why do people with mental illness drink more?

People with mental illness are more likely to drink heavily primarily because alcohol offers fast, accessible, and temporarily effective relief from painful symptoms — a pattern known as self-medication. Someone managing untreated depression may drink to feel a flicker of pleasure; someone with social anxiety may drink to feel functional in social settings; someone with PTSD may drink to blunt flashbacks and hyperarousal. The brain’s reward system reinforces this connection powerfully: alcohol works quickly, and when the underlying suffering is severe, the short-term relief can feel far more immediate than any available treatment option. The problem is that alcohol progressively worsens the neurological conditions that drive the symptoms, requiring more alcohol for the same relief while deepening the underlying disorder.

How do I get help for alcohol use and a mental health disorder at the same time?

The most effective path is to seek treatment at a program that specializes in dual diagnosis — meaning one that is equipped to treat both the addiction and the co-occurring mental health condition simultaneously and within a coordinated care model. This typically involves a combination of medical evaluation, psychiatric assessment, evidence-based therapies such as CBT and EMDR, and support structures that address the whole person rather than just the substance use. Trying to manage one condition without addressing the other dramatically reduces the likelihood of lasting recovery, since each condition can drive and sustain the other. At Boardwalk Recovery Center, our dual diagnosis program in San Diego is built around exactly this integrated approach — if you or someone you love is living with both alcohol dependence and a mental health condition, we invite you to reach out for a confidential conversation.